#3F477A#3F477A

#3F477A is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.6% C 0.085 H 275.3°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F477A
RGB	rgb(63, 71, 122)
HSL	hsl(232, 32%, 36%)
HSV	hsv(232, 48%, 48%)
CMYK	cmyk(48.4%, 41.8%, 0%, 52.2%)
CIE-LAB	lab(31.73, 11.67, -30.13)
CIE-LCH	lch(31.73, 32.31, 291.17°)
OKLab	oklab(41.59% 0.0079 -0.0851)
OKLCH	oklch(41.59% 0.085 275.3)
XYZ	xyz(7.8149, 6.9680, 19.3417)
Luminance	0.0697 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F477A #7A723F

analogous

#3F657A #3F477A #553F7A

triadic

#3F477A #7A3F47 #477A3F

tetradic

#3F477A #7A3F65 #7A723F #3F7A55

square

#3F477A #7A3F65 #7A723F #3F7A55

split-complementary

#3F477A #7A553F #657A3F

monochromatic

#151829 #2A3052 #3F477A #545EA2 #7982BA

Accessibility & contrast

On white

8.77

#3F477A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3F477A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F477A

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F477A	#FFFFFF	#000000	##FFFFFF
##3F477A	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344D7C

Deuteranopia (green-blind)

#2F4879

Tritanopia (blue-blind)

#2A525A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f477a;
/* rgb */ color: rgb(63, 71, 122);
/* oklch */ color: oklch(41.6% 0.085 275.3);

Tailwind

colors: {
  custom: {
    50: '#787aa1',
    500: '#3f477a',
    950: '#000000',
  },
}

SCSS

$custom: #3f477a;
$custom-light: #787aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f477a",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 122
  },
  "hsl": {
    "h": 231.864,
    "s": 31.892,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41585,
    "c": 0.08547,
    "h": 275.3
  },
  "luminance": 0.06968
}

Semantic roles & 50–950 ramp

primary

#3F477A

secondary

#A49D70

accent

#BA60C8

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#09090F

muted

#7B7B7E

Preview Lab

Preview with #3F477A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →